Indian Agricultural Research Institute, New Delhi
**Present address: College of Agriculture, Dharwar-580005
*A portion of the doctoral Thesis of the first author submitted to the Post Graduate School, Indian Agricultural Research Institute, New Delhi.
The changes in glucose, fructose and starch fractions were followed during development, ripening and long term storage of Pusa Seedless grapes. Sugar accumulation was extremely low upto 6 weeks after anthesis (lag phase). The ripening period accounted for more than 95 per cent of the sugar accumulation. The proportion of glucose was higher than that of fructose until the lag phase; but this trend was reversed during the ripening period. The sugar content continuosuly decreased during storage. Within a month's storage at 0-l°C, there was nearly 30 per cent loss in the sugar content of the berry. Fructose continued to maintain a higher level than glucose throughout the storage period.
